2003 Silverado skips at 50 mph
 

My truck skips at 50 mph, similar to sparkplug misfire or water in the fuel. It idles fine and doesn't have a problem until speed reaches 50 mph.

RE: 2003 Silverado skips at 50 mph
 

Hello, I have a 05 with the same problem. I've had it to the dealer 3 times and he says its the tires, but I drove one like mine with-out the H.O. motor and it did not skip. Mine is 5.3 H.O. auto, 4.10 4x4 and from 50 to scary it does it, makes for long uncomfortable trips.

RE: 2003 Silverado skips at 50 mph
 

are you running HIGH test with the HO
that makes a diff on my 05
when i had it